Home / 820,743,034.96-1,231,117,001.84-198,955,801.36

Finding the Fourth Proportional to 820,743,034.96, 1,231,117,001.84 and 198,955,801.36

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Solution

The fourth proportional to 820,743,034.96, 1,231,117,001.84 and 198,955,801.36 is: 298,434,295.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,743,034.96 : 1,231,117,001.84 = 198,955,801.36 : x
  2. Step 2: Convert to fraction form
    820,743,034.96/1,231,117,001.84 = 198,955,801.36/x
  3. Step 3: Cross multiply
    820,743,034.96x = 1,231,117,001.84 × 198,955,801.36
  4. Step 4: Simplify right side
    820,743,034.96x = 244,937,869,668,997,792
  5. Step 5: Solve for x
    x = 244,937,869,668,997,792/820,743,034.96
  6. Step 6: Final answer
    x = 298,434,295.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.